# Proposed AD 2003-NM-18-AD: Saab Model SAAB SF340A and SAAB 340B Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2004-11-02
- Products: SAAB
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 6, 2004, 69 FR 5778
- Comments due: March 8, 2004
- Became: [AD 2004-11-02](https://openairdocs.org/ad/2004-11-02)
- Docket: 2003-NM-18-AD
- FR document: 04-2475
- Official PDF: https://openairdocs.org/files/sha256/f7/0f/f70f6c8abfd914a3be00b7db4a26917e6a41b2b3446361b2ced8a2ec23d13a26 (from https://www.govinfo.gov/content/pkg/FR-2004-02-06/pdf/04-2475.pdf)
- Federal Register: https://www.federalregister.gov/documents/2004/02/06/04-2475/airworthiness-directives-saab-model-saab-sf340a-and-saab-340b-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/157CD71CC28C4BE386256E32005C8CA5.0001
- Page: https://openairdocs.org/proposed/2003-NM-18-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Saab Model SAAB SF340A and Model SAAB 340B series airplanes. This proposal would require inspections of the internal structure of the nacelles for cracks, deformations, or other damage, and corrective actions if necessary. This action is necessary to prevent fatigue cracks in the outer flange of the nacelle frame, which could result in reduced structural integrity of the nacelle supporting structure. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Feb 6, 2004: Notice of proposed rulemaking (NPRM). (first notice), FR document 04-2475, comments due Mar 8, 2004 (https://www.federalregister.gov/documents/2004/02/06/04-2475/airworthiness-directives-saab-model-saab-sf340a-and-saab-340b-series-airplanes)

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